Door-operating mechanism



A. S. NOONAN.

' DOOR OPERATING MECH ANISM.'

APPLICATION FILED JUNE I5, I918.

Patented Jan, 20,1920.

2 SHEETSSHEET1 A. S. NO'ONAN.

000R OPERATING MECHANISM.-

vAPPLICATION FILED JUNE 15; 1918.

Patented Jan. 20, 1920.

2 SHEETSSHEET 2- ALBERT S, NQQNAN, OF PHILADELPHIA,

PENNSYLVANIA, ASSIGNOR TO FOSS-HUGHES COMPANY, OF PHILADElZ-JE'HIA,PENNSYLVANIA, A CORPORATION OF PENNSYL- vsnm.

DOOR-OPERATING MECHANISM.

eas es,

Specification of Letters Patent.

Patented Jan. 20, 1920.

Application filed June 15, 1918. Serial No. 240,233.

To aZZ whom it may concern:

Be it known that I, ALBERT a citizen of the United States, residing inPhiladelphia, Pennsylvania, have .invented Door-Operating Mechanism, ofwhich the following is a specification;

S. NOONAN,

, a One object of this invention is to provide a relatively simple,inexpensive, substantial and conveniently operated apparatus formechanically opening and closing relatively heavy swinging doors such asare commonly employed in a garage or factory, the inventioncontemplating a novel arrangementof fluid actuated motor, controllingmeans and flexible connections for providing and applying the powernecessary to actuate such doors.

These objects and other advantageous ends I attain as hereinafter setforth, reference being had to the accompanying drawings, in which,

Figure 1 is a plan, to some extent diagrammatic and partly in section,illustrating my invention as applied to a pair of swingin doors;

ig. 2 is a longitudinal vertical section of the preferred form of fluidactuate-d motor shown in Fig. 1;

Fig. 3 is a perspective view of the preferred form of valve forcontrolling the operation of the fluid motor; and

Figs. 4 and 5 are transverse sections illustrating the arrangement ofthe passages in the valve shown in Fig. 3.

vIn the above drawings, 11 represents a pair of-swinging doors hingedtot the wall structures 2 in such manner as to be free to turn throughangles of substantially 90 from a closed to an open position or vice'versa. Supported in any desired manner from the roof building in whichthe doors operate and preferably immediately adjacent and above ahorizontal plane including the upper edges of said doors; is an,elongated cylinder 3 having operative within it a piston or plungerConnected to this piston are two oppo-- sitely extending rods 5 and 6passing through the endsof the cylinder respectively, and the latter is'provided with stufi-' ing boxes to prevent leakage of fluid underpressure around said rods.

A pair of sheaves or pulleys 7 is suitably supported from the ceiling ofthe room or building above and immediately adjacent ea y,

or ceiling of the room or on the outer end of the piston rod 6. A thirdcable 17 extends from the head 9 around one of the guide pulleys 7 and apulle 18 to an arm or bracket 19 on the top of the rear face of the door.1, while a fourth cable 20 extends from this same arm around guidepulleys 21, 22 and 23 to the head 16 of the rod 6. The pulleys 13l4rand21-22 are so placed that tension exerted on the cables 12 and 20 byreason of the movement of the head 16 toward the cylinder 3, causes thedoors 11 to turn on their hinges from their closed to their openpositions, and simwhen said doors occupy the latter positions, movementof the head 9 toward the cylinder 3 causes them to be so acted on by thecables 17 .and 8 that they move to their closed positions.

For controlling the movement of the plunger or piston 4 and hence of thedoors,

I provide a valve 24'consisting of a casing of a'correspondingly formedrotary plug or valve member 26. As shown in Figs. 4 and 5, this latterhas in it two passages 26 and 26 formed in arallel planes and havingtheir epds openlng on its conical surface in positions to coiiperatewith twosets of ports or passages formedin the casing 25, each of whichincludes three passages. The passages of one set have respectivelyconnected to them three conduits 27, 28 and 29 and the passages of theother set have likewise connected to them conduits 30, 31 and 32, ofwhich those indicated at 29 and 30 are both connected to an exhaustconduit 33.

Similarly the conduits 27 and 32 are both connected to a conduit 34leading to a source of supply for fluid under pressure, while theconduit 28 is connected to one end of the cylinder 3 and the conduit 31is connected to' the opposite end thereof. Stop valves 35 and 36 areconnected respectively in the conduits 30 and'29 so that either of themmay be throttled to any desired extent to cushion the exhaust.'

which when the valve is placed in an inaccessible position, 6. 9.,immediately adjacent the cylinder 3,,may be operated in any desiredmanner either by power or byhand.

In the case illustrated said handle has connected to its opposite ends apair of wires or cables 41 and 42 guided around pulleys 434L45 and464748 respectively, so that their free ends may be conveniently operated by a person stationed near the doors. Under conditions of use, ifthe doors are in their closed positions, movement of the valve member 26such as will place its passage 26 in position to connect the conduits 32and 31 and its passage 26 in position to connect the conduits 28 and 29,will result in motive fluid, such as compressed air, being deliveredfrom the pipe 34 through the pipe 32 to that end of the cylinder distantrom the doors, at the same time that the opposite end of the cylinder isplaced in connection with the exhaust pipe 33. The piston 4 is thereuponmoved in the cylinder toward the doors and swings them from their closedto their open positions by power transmitted through the rod 6 to thecables 12 and 20 ;the movement of the piston being cushioned byadjusting the valve 36 so that the exhaust through the pipe 29 isthrottled to any desired extent.

On the other hand, when the movable valve member 26 is so operated as tocause motive fluid to be admitted to the cylinder 3 through the pipe 28and to place the opposite end of said cylinder in communication with theexhaust pipe 30, the resulting movement of'the piston 4 away from thedoors causes these to be moved from their open positions, shown indotted lines, to their closed positions, by power transmitted throughthe cables 8 and 17. The speed of this movement of the doors iscontrolled and fluid for the cylinder.

any objectionable shocks are prevented b adjustment of the valve 35.

A stop 49 is preferably provided to limit the movement of the valvemember 26 in one direction and a suitable blow-off cock 50 may be soplaced in the casing 25 as to be brought into communication with eitherof the pipes 28 or 31 through a suitable pas sage in the member 26 topermit of the escape of water from the system when this is desirable.

I claim:

1.- The combination of a pair of doors; a cylinder mounted adjacent saiddoors and having its longitudinal axis extending at right anglesto theplane of the doors when said doors are closed; a piston for thecylinder; a piston rod connected to the'piston and extending throughboth ends of the cylinder; flexible connections, between one end of therod and the doors for closing the latter and other flexible connectionsbetween the other end of said rod and the doors for opening the doors;guide pulleys for said connections; and a valve for controlling theadmission and exhaust of motive fluid for the cylinder.

2. The combination of a pair of swinging 1 doors; a cylinder adjacentsaid doors having its longitudinal axis extending at right angles to theplane of the doors when said doors are closed; a piston for thecylinder;

two rods connected to the piston and extending through opposite ends ofthe cylinder; brackets projecting from the upper portions of the doors;flexible connections 'between one of the rods and the doors for closingthe latter and other flexible connec tions between the other rod and thedoors for opening said doors, guide pulleys for said connections; and avalve for controlling the admissionand exhaust of active whereof Iaffix. my signature.

